LEPIDOPTERA HETEKOCERA. 979 



1. NOORDA BLTTEALIS. 



Fcem. Obscure viridis, nigro conspersa, subtus nivea ; thorax 

 iridescens ; abdomen fuscum, fasciis tribus chalybceis nigro 

 marginatis ; pedes fusco vittati ; alee anticce cyaneo viridique 

 micantes, lineis tribus nigris, linea interiore arcuata, linea 

 submarginali devia, linea marginali abbreviata, reniformi 

 obliqua nigro marginata ; posticce albo hyalinoe, margine nigro- 

 cupreo postice attenuato. 



Female. Dark green, black-speckled, pure white beneath. 

 Thorax with iridescent tints, like those of dove-plumage. Abdo- 

 men brown, with chalybeous black-bordered bands. Legs partly 

 striped with brown. Fore wings with blue and green metallic 

 scales, which glitter when viewed in some aspects ; three black 

 lines ; interior line curved ; submarginal line irregular ; marginal 

 line abbreviated ; reniform mark oblique, black-bordered ; under 

 side white, except towards the exterior border. Hind wings white, 

 hyaline, with a cupreous-black border, which is attenuated hindward 

 and hardly reaches the interior angle. Length of the body 4i lines ; 

 of the wings 10 lines. 



a. Ceylon. From Mr. Stevens' collection. 



Genus IDESSA. 



Mas. Corpus robustum. Proboscis valida. Palpi porrecti, 

 breves, lati, obtusi, articulo 3o minimo. Palpi maxillares distincti. 

 Antennae pubescentes. Thorax squamosus. Abdomen alas posticas 

 sat superans, fasciculo apicali longo. Pedes glabri; tibiae anticae 

 fasciculatae. Alae elongatae ; anticae robustae, opacae, acutae, lituris 

 paucis ; posticae semihyalinae, marginatae, lituris nullis. Fcem. — 

 Palpi subascendentes ; antennae vix pubescentes. Abdomen alas 

 posticas vix superans. 



Male. Body stout. Proboscis robust. Palpi porrect, short, 

 broad, obtuse, extending beyond the head ; third joint very minute, 

 Maxillary palpi distinct. Antennae pubescent. Thorax squamous. 

 Abdomen extending rather far beyond the hind wings ; apical tuft 

 long. Legs smooth ; spurs long ; fore tibiae tufted. Wings elon- 

 gate. Fore wings robust, opaque, acute, with but few markings. 

 Hind wings iridescent, semihyaline, bordered, without markings. 

 Female. — Palpi slightly ascending. Antennae hardly pubescent. 

 Abdomen hardly extending beyond the hind wings. 



4q 



